I'm looking for a lively server. I will be playing Alliance. Planning to do both PvE and PvP. Any suggestions? No 40+ minute queues please.

Proudmoore-US is pretty good: large enough population that it doesn't feel empty on the Alliance side, reasonable PvE progression. I can't speak to PvP (because I don't need to be your honor farming , but it is a PvE server with plenty of PvP flagged folks visible all the time. Lively auction house, plenty of pugs, but no queues to worry about -- even at peak times like expansion releases.

Even the limited matchmaker PvP I have done (*cough* legendary cloak *cough*) has not been too painful -- the Horde are often better PvP players in the battle group (and, er, everywhere, right?) but the Alliance don't do too badly. Probably better when not full of legendary cloak seekers looking for a PvP win carry and all.

It is about 80:20 alliance, so the horde experience is probably less fulfilling, if that matters to you. Also, it is reputed to be "the" LGBT friendly server, so if you get in a tizzy because you see guilds that add "LGBT friendly" to their advertisements in trade this probably isn't the best choice for you.

Kel'Thuzad is a great Alliance server a ton of PvE and even more PvP. No long ques only on tuesday night for like 1-2 mins max. Only seen the que once though. plenty of PuG's and a stable economy, well stable until I crash it xD.

If you're coming from the EU. I can recommend The Maelstrom, its Alliance dominated, medium population (but it sure feels like more) and is very active. But the Hordde is very few, thats the backside of it (I think)

Minions... servants... soldiers of the cold dark! Obey the call of Kel'Thuzad!
*chills*

I can help you only with PvP servers, but if you need it:
Forget about Outland, queue times are unbearable. You don't want to login at 4pm just to get into the game and then be forced to stay logged on just to avoid that queue time, just because you want to play at around 8pm. As for every realm with high rated players, quality of that realm will decrease over time, same thing happened with Stormscale.
Sylvanas is a little bit better, but there aren't that MANY great PvP players.
From a PvP standpoint, Ravencrest is the best for Alliance right now. There are many players (top players) and you can still meet Horde players, yet it's Alliance dominated.